Originally posted by Sunniebgi I'm sorry.. according to my information there was nothing I received when I got the camera that said anything about special batteries..
You don't need "special" batteries. Ordinary NiMH and Lithium AA cells available at any electronics store - even many convenience stores - work fine. It's only alkalines that don't work well. Maybe you got lucky for a while and managed to find some alkalines that were able to last longer than most, but you were living on borrowed time. You need to give up on the notion that alkalines are going to work well for you, because in general, they won't. Read the warning in the manual on page 26 - alkaline batteries are *not recommended* for use "except in emergencies and checking the camera's functionality". They work, but poorly. Exactly as stated in the manual.
Quote: as a matter of fact it shows AA on the battery compartment.
Right, because that is the type of battery it takes. The alkalines don't work very well with the camera, but NiMH and Lithium do. Exactly as described in the manual. Apparently NiZn works well too; these weren't generally available yet when the K100D came out, so the manual doesn't mention them.
Quote: I've purchased some 2500mah rechargeable and while they are working, they still lose charge very quickly
Again, that's normal. Ordinary NiMH cells are good for hundreds of shots if used within a week or two, but lose their charge relatively quickly when not in use, so they aren't a great choice for people who might take weeks or months to get to that many shots. Also, older NiMH cells often have trouble maintaining a high enough voltage level to work as long as they otherwise could. Both because of the self discharge issue and the voltage issue, most people using Pentax DSLR's that take AA's have switched to the low-self-discharged "hybrid" rechargeables like Sanyo Eneloops or the various other similar brands. These work *great*.
Quote: I live in Barbados and it's very hard for me to send this camera to Pentax to get the problem diagnosed and fixed
Once more, there is no "problem" - your camera is acting exactly likes everyone else's. Get the right kind of batteries and your difficulties disappear *instantly*.